10G Ethernet SFP+ Series

SFP+ series products is small form factor (10 Gb/s) pluggable transceiver for duplex optical data communications. It’s comply with SFP+ multi-source agreement (MSA: SFF-8431),

General Details
SFP+ series products is small form factor (10 Gb/s) pluggable transceiver for duplex optical data communications. It’s comply with SFP+ multi-source agreement (MSA: SFF-8431), also be comply with 10-Gigabit Ethernet IEEE802.3ae and 10G Fiber Channel. The Digital diagnostics functions and standard transceiver serial ID information are available via a 2-wire serial interface according SFP+MSA, the transceiver is RoHS compliant and lead-free per Directive 2002/95/EC and 2005/747/EC.
Product Feature
  • Operating data rate is 10.3Gbps
  • Distance up to 300m~10km
  • Single 3.3V Power supply and TTL Logic Interface
  • Duplex LC Connector Interface
  • Hot Pluggable
  • Compliant with MSA SFP Specification
  • Compliant with Telcordia GR-253-CORE and I3ae
  • Digital Diagnostic Monitor Interface Compatible with SFF-8472
  • Operating Case Temperature Standard: -5℃~+70℃

 

 

Applications:

  • 10GBASE-SR/SW/LR/LW
  • 10G Fiber Channel
  • Other Optical Link
Other
Regulatory Compliance
FeatureStandardPerformance
Electrostatic Discharge
(ESD) to the
Electrical Pins
MIL-STD-883G
Method 3015.7
HBM class 1, 1000volts and above, Contact discharge on Golden Finger.
Electrostatic Discharge
to the enclosure
IEC-61000-4-2
GR-1089-CORE
Compliant with standards.
Electromagnetic
Interference (EMI)
FCC Part 15 Class B
EN55022:2006
VCCI Class B
Compliant with standards Noise frequency range: 30MHz to 18 GHz.
System margins depend on customer host board and chassis design.
ImmunityIEC 61000-4-3Compliant with standards.
Laser Eye SafetyFDA 21CFR 1040.10 and 1040.11
EN (IEC) 60825-1:2007
EN (IEC) 60825-2:2004+A1
CDRH compliant and Class I laser product.
Component RecognitionUL and CUL
EN60950-1:2006
Compliant with standards.
RoHS62002/95/EC 4.1&4.2
2005/747/EC 5&7&13
Compliant with standards*note3

Note3:

In light of item 5 in RoHS exemption list of RoHS Directive 2002/95/EC, Item 5: Lead in glass of cathode ray tubes, electronic components and fluorescent tubes.

In light of item 13 in RoHS exemption list of RoHS Directive 2005/747/EC, Item 13: Lead and cadmium in optical and filter glass. The three exemptions are being concerned for DCN transceivers, because DCN transceivers use glass, which may contain Pb, for components such as lenses, windows, isolators, and other electronic components.

 

Absolute Maximum Ratings*Note4
ParameterSymbolMinMax Unit
Storage TemperatureTS-40+85°C
Supply VoltageVCC0+4V
Operating Humidity595%

Note4: Exceeding any one of these values may destroy the device permanently.

 

Recommended Operating Conditions
ParameterSymbolMinTypicalMax UnitNotes
Operating Case TemperatureTC-570°CST
-4085°CIT
Power Supply VoltageVCC3.143.33.47V
Power Supply CurrentIcc300mA300m\2km\10km
450mA40km\80km
Bit Rate10.3125Gbps
I2C Clock Frequencyfcl100kHz

 

Performance Specifications – Electrical
ParameterSymbolMinTyp.Max Unit Notes
Transmitter
TX CML Inputs Voltage (Differential)Vin150950mVppAC coupled inputs
Input Impedance (Differential)Zin100ohm
Tx_DISABLE Input Voltage – High1.7Vcc+0.3V
Tx_DISABLE Input Voltage – Low-0.30.8V
Tx_FAULT Output Voltage – High2VOC output, should be pull up with 4.7K – 10 KΩ on the host board
Tx_FAULT Output Voltage – Low0.4VIOL = 1mA
Receiver
CML Outputs Voltage (Differential)Vout300850mVppAC coupled outputs
Output Impedance (Differential)Zout100ohm
Rx_LOS Output Voltage – High2VOC output, should be pull up with 4.7K – 10 KΩ on the host board
Rx_LOS Output Voltage – Low0.4VIOL = 1mA
MOD_DEF ( 0:2 )VOH2.5V
VOL00.5V

 

Timing Specifications
ParameterSymbolMinTyp.Max Unit
TX Disable Assert TimeT_off100us
TX Disable Negate TimeT_on2ms
Time to initialize, include reset of TX_FAULTT_start_up300ms
TX_FAULT from fault to assertionTx_Fault_on1ms
RX_LOS Assert TimeT_los_on100us
RX_LOS De-Assert TimeT_los_off100us

 

Performance Specifications – Optical

850nm VCSEL and PIN300m

ParameterSymbolMinTyp.Max Unit
Transmitter
Centre Wavelengthλc840850860nm
Spectral Width (RMS)Δλ0.65nm
Average Output Power*note5Pout-7.3-1dBm
Extinction RatioER3dB
Average Power of OFF TransmitterPout-off-30dBm
Transmitter Dispersion PenaltyTDP3.9dB
Optical Return Loss ToleranceORLT12dB
Output Optical EyeCompliant with IEEE802.3ae-2005
Receiver
Centre Wavelength λc 840860nm
Receiver Sensitivity*note6 SEN-11.1dBm
Receiver Overload Pmax-1dBm
LOS De-Assert LOSD-13dBm
LOS Assert  LOSA-25dBm
LOS Hysteresis LOSH0.54dB

Note5: Output is coupled into a 50/125um OM3 MMF. The typical value is -2.5dBm.

Note6: Measured with a PRBS 231-1 test pattern @10.3125Gbps, BER≤10-12.

 

Performance Specifications – Optical

1310nm DFB and PIN10km

ParameterSymbolMinTyp.Max Unit
Transmitter
Centre Wavelengthλc127013101355nm
Side Mode

Suppression Ratio

SMSR30dB
Spectral Width (-20dB)Δλ1nm
Average Output Power*note7Pout-8.20.5dBm
Extinction RatioER3.5dB
Average Power of OFF TransmitterPout-off-30dBm
Transmitter Dispersion PenaltyTDP3.2dB
Optical Return Loss ToleranceORLT12dB
Output Optical EyeCompliant with IEEE802.3ae-2005
Receiver
Centre Wavelength λc 12601610nm
Receiver Sensitivity*note8 SEN-14.4dBm
Receiver Overload Pmax0.5dBm
LOS De-Assert LOSD-15dBm
LOS Assert  LOSA-25dBm
LOS Hysteresis LOSH0.54dB

Note7: Output is coupled into a 9/125um SMF. The typical value is -2dBm.

Note8: Measured with a PRBS 231-1 test pattern @10.3125Gbps, BER≤10-12.

 

SFP Transceiver Electrical Pad Layout

Host PCB SFP+ pad assignment top view

 

SFP+ module contact assignment

 

Pin Function Definitions
Pin Num.NameFunctionPlug Seq.Notes
1VeeTTransmitter Ground1Note 13
2TX FaultTransmitter Fault Indication3Note 9
3TX DisableTransmitter Disable3Note 10, Module disables on high or open.
4SDAModule Definition 232-wire Serial Interface Data Line.
5SCLModule Definition 132-wire Serial Interface Clock.
6MOD-ABSModule Definition 03Note 11
7RS0RX Rate Select (LVTTL).3Rate Select 0, optionally controls SFP+ module receiver. This pin is pulled low to

VeeT with a >30K resistor..

8LOSLoss of Signal3Note 12
9RS1TX Rate Select (LVTTL).1Rate Select 1, optionally controls SFP+ module transmitter. This pin is pulled low

to VeeT with a >30K resistor

10VeeRReceiver Ground1Note 13
11VeeRReceiver Ground1Note 13
12RD-Inv. Received Data Out3Note 14
13RD+Received Data Out3Note 14
14VeeRReceiver Ground1Note 13
15VccRReceiver Power23.3V ± 5%, Note 15
16VccTTransmitter Power23.3V ± 5%, Note 15
17VeeTTransmitter Ground1Note 13
18TD+Transmit Data In3Note 16
19TD-Inv. Transmit Data In3Note 16
20VeeTTransmitter Ground1Note 13

Note9: TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10K_ resistor on the host board. Pull up voltage between 2.0V and VccT/R+0.3V. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

Note10: TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7K – 10 K_ resistor. Its states are: Low: Transmitter on; High: Transmitter Disabled; Open: Transmitter Disabled.

Note11: Module Absent, connected to VeeT or VeeR in the module.

Note12: LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K –10K_ resistor. Pull up voltage between 2.0V and VccT/R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

Note13: The module signal ground contacts, VeeR and VeeT, should be isolated from the module case.

Note14: RD-/+: These are the differential receiver outputs. They are AC coupling that is done inside the module and is thus not required on the host board.

Note15: VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Inductors with DC resistance of less than 1 ohm should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. VccR and VccT may be internally connected within the SFP transceiver module.

Note16: TD-/+: These are the differential transmitter inputs. They are AC-coupled that is done inside the module and is thus not required on the host board.

 

Order Information
Part No.Data
Rate
LaserFiber
Type
Distance*Note1Optical
Interface
Bail ColorTemp. *Note2DDMI
SFPX-SR10.3Gbps850nm-VCSELMMF300mLCBlackSTY
SFPX-LR10.3Gbps1310nm-DFBSMF10kmLCBlueSTY

Note1: 300m with 50/125µm OM3 MMF,10km with 9/125µm SMF

Note2: ST: -5 ~ +70 deg C

Digital Diagnostic Functions

Digital Diagnostic Memory Map Specific Data Field Descriptions

 

  • SFP+ transceiver support the 2-wire serial communication protocol as defined in SFP MSA, in which defines a 256-byte memory map in EEPROM at 8 bit address 1010000X (A0h). The digital diagnostic monitoring interface be assigned with 8 bit address 1010001X (A2h). Additionally, SFP transceivers provide a unique digital diagnostic monitoring interface (DDMI), which allows real-time access to product operating parameters such as transceiver supply voltage, transceiver temperature, transmitted optical power, laser bias current and received optical power. It also defines alarm and warning threshold, which alerts end-users when particular operating parameters are outside of factory setting.
  • When the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into those segments of the EEPROM that are not write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def 2) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially.
  • Digital diagnostics for the TPS-TGxx-xxDxR are internally calibrated by default: Calibration and alarm/warning threshold data is written during device manufacturing.

 

Digital Diagnostic Monitoring Specifications

 

Monitor accuracy 
ParameterMinTypMaxUnits
Internally measured transceiver temperature±3ºC
Internally measured transceiver supply voltage±3%V
Measured TX bias current±10%
Measured TX output power±3dBm
Measured RX received average optical power±3dBm
 

Dynamic range for operation*Note17

ParameterH-AlarmH-WarningL-WarningL-Alarm   Units
Internally measured transceiver temperatureST+85+80-5-10ºC
IT+100+95-35-40
Internally measured transceiver supply voltage3.633.473.132.97V
Measured TX bias currentVCSEL Laser121121mA
FP/DFB Laser120110105
EML Laser130120105
Measured TX output powerPout_MAX+1Pout_MAXPout_MINPout_MIN-1dBm
Measured RX received average optical powerOverload+1OverloadSENSEN-2dBm

Note17: It is permissible to be adjusted according to the manufacturer’s testing result.

Recommended Circuit
Recommended Host Board Power Supply Circuit
Mechanical Dimension
Eye Safety

These transceivers are Class 1 laser products. It complies with IEC-60825 and FDA 21 CFR 1040.10 and 1040.11. The transceiver must be operated within the specified temperature and voltage limits. The optical ports of the module shall be terminated with an optical connector or with a dust plug.

 

Obtaining Document

Or contact DCN listed at the end of the documentation to get the latest document.

 

 

 

 


Notice

reserves the right to make changes to or discontinue any optical link product or service identified in this publication, without notice, in order to improve design and/or performance.

Applications that are described herein for any of the optical link products are for illustrative purposes only. DCN makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification.